<template>
  <div>
    御剑乘风来,除魔天地间!===first
    <button @click="btn">按钮</button>
    <Son2></Son2>
  </div>
</template>
<script setup>
import { provide } from 'vue'
import Son2 from './Son2.vue'
const btn = () => {
  console.log('btn');
}
provide('msg', 111)
provide('msg2', 111)
</script>
<style lang='less'  scoped>
</style>